TY JOUR TI Use of systems of the automated design for modeling of operation of soil-cultivating tools KW CAD KW solid-state modelling KW soil-tilling implements JO Actual directions of scientific researches of the XXI century: theory and practice AU Shabanov, M.L. AU Lysych, M.N. AU Levishchev, I.. PY 2014 IS 2 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov